This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX170, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI80 Standard Air Cylinder SI80AX170
The AirTAC SI80 Standard Air Cylinder SI80AX170 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 170mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX170, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke170 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX170
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI80 Standard Air Cylinder SI80AX170
The AirTAC SI80AX170 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 170 mm stroke. It delivers 2513 N push force at 0.5 MPa via a G3/8 port. The direct replacement is the SAI80AX170, matching the interface, bore, stroke, force, and mounting. This SKU features a SUS420J2 stainless steel rod (the -A option) but lacks a magnet, so it cannot accept a sensor switch.
Upgrading to the SAI80AX170 introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI80 Standard Air Cylinder SI80AX170 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX170 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX170 |
| Bore size | Ø80 mm |
| Stroke | 170 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI80AX170 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80AX170 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI80 Standard Air Cylinder SI80AX170
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×170 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI80 Standard Air Cylinder SI80AX170 Is Used
Mid-Tonnage Pressing
Applies the 2513 N push force at 0.5 MPa for seating bearings or light stamping tasks in automated machinery.
Heavy Package Diversion
Drives robust routing gates or pushers on high-throughput material handling lines with a 170 mm travel.
Pallet Lift Stops
Acts as a heavy-duty physical stop or index pin in pallet handling due to its durable 80 mm profile barrel.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX170 with the SAI80AX170
To replace the SI80AX170, order the SAI80AX170 to guarantee the exact ISO 15552 mounting interface, 80 mm bore, 170 mm stroke, M20x1.5 rod thread, and G3/8 port are preserved. Confirm your mounting accessory (LB, FA, TC, etc.) and note this non-magnet SKU cannot take a CS1-B or DS1-B sensor. If you need more force, the neighboring 100 mm bore yields 3927 N push at 0.5 MPa; if less is needed, the 63 mm bore gives 1559 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX170
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI80 Standard Air Cylinder SI80AX170 FAQ
Yes, the SI80AX170 is discontinued. The direct replacement is the SAI80AX170. It is dimensionally interchangeable per ISO 15552, keeping the same 80 mm bore, 170 mm stroke, 25 mm rod, G3/8 port, and mounting fixtures.
The 80 mm bore provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical max of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s. The G3/8 port and 36 mm adjustable cushion remain unchanged.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX170
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX170 replacement — usually within 7-8 hours.